25051 has 8 divisors (see below), whose sum is σ = 28224.
Its totient is φ = 22080.
The previous prime is 25037. The next prime is 25057. The reversal of 25051 is 15052.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 25051 - 27 = 24923 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (13).
It is a Duffinian number.
It is a nialpdrome in base 13 and base 15.
It is not an unprimeable number, because it can be changed into a prime (25057) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510 + ... + 556.
It is an arithmetic number, because the mean of its divisors is an integer number (3528).
225051 is an apocalyptic number.
25051 is a deficient number, since it is larger than the sum of its proper divisors (3173).
25051 is a wasteful number, since it uses less digits than its factorization.
25051 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 101.
The product of its (nonzero) digits is 50, while the sum is 13.
The square root of 25051 is about 158.2750770020.
The cubic root of 25051 is about 29.2600471974.
Subtracting from 25051 its reverse (15052), we obtain a palindrome (9999).
The spelling of 25051 in words is "twenty-five thousand, fifty-one".